Experiments

Data about the climate in an ecosystem were collected for 30 years. Which hypothesis about a population of eagles could be made based on the climate data collected?

A student wanted to study the effect of temperature on algae levels in a local stream. Which items are most useful for gathering data and most appropriate for communicating the results of her observations?

Which question cannot be answered scientifically because the quantity cannot actually be measured?

A biology class of 24 students decides to measure the height of each student and then calculate the average height for the class. Which of these is a possible source of error in this activity?

A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds under identical conditions and charged their growth. What is the IV in this experiment?

A scientist designed an experiment to test the effect of temperature on bacterial growth. He grew three different cultures of the bacterium E. coli under three heat lamps at different temperatures. What was the independent variable in this experiment

A student’s experiment showed that earthworms move away from light. This statement should be classified as —

In an experiment, the height of several plants was recorded daily in millimeters. Which tool would be the most accurate and appropriate for this measurement?

Match it! Select the correct answer from the pull down...Good luck!